olmpiad Posted June 20, 2006 Share Posted June 20, 2006 YAAAY 20,001 post. Anyway, I typed this up the other day but I wanted to make sure that everything was accurate, is it? As Extraction From Realgar David Aldridge Arsenic can be won from realgar by reacting the powdered mineral with Fe filings. The result will be solid As, and solid FeS. This needs to be done under a hood, as some of the As is vaporised into Arsine. Fe: 1 Mole is equal to 55.847 g As: 1 Mole is equal to 74.92159g S : 1 Mole is equal to 32.066 g If we break up everything into 1/10th of a mole for each of the elements (The As and the S are still attatched, we are just figuring out how much of each element is present), we would find that 1/10th of a mole of each would equal... 55.847g Fe = 5.6g Fe 74.921g As = 7.5g As 32.066g S = 3.1g S Thus, the approxamite amount of each chemical that woud be needed it as follows... 10.8g AsS 05.6g Fe In The End, we would obtain... 8.9g FeS 5.6g As The equation for this reaction would be as follows... AsS(s) + Fe(s) --> FeS(s) + As(s) ©2006 by David Aldridge Link to comment Share on other sites More sharing options...
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